WordPress tip: Send article to a friend by email

DISCLAIMER: this post is older than one year and may not be up to date with latest WordPress version.

In order to create more traffic on your blog, it can be a good idea to let your readers send your posts to their friends by email. A few month ago, I already shown you a function to do that, here is an improved version for today.

To apply this recipe to your blog, simply paste the following function into your functions.php file, and that’s all. Hard to do something simpler!

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I don’t get it. This code or the way it was explained seems to be incomplete. After placing this into function then what!?
There needs to be something which calls it. Please anyone help to complete this tutorial.

It’s nice to see small codes exists to perform such tasks instead of having to install a plugin for the same. Don’t we need to make any changes in the single.php for this function to be made visible in the post page?